Grass is a monocotplant, of the family Gramineae, also called Poaceae. It is a generic name for many similar plants, including bamboo and wheat, that have narrow leaves and jointed stems. Popularly, grass means a short, green ground covering, or lawn.
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1961 - Stirling Moss, (United Kingdom)
1962 - Bruce McLaren[?], (New Zealand)
1963 - Graham Hill, (United Kingdom)
1964 - Graham Hill, (United Kingdom)
1965 - ...